Science books for KS1?

[LunarSea]

Can anyone recommend any science-orientated / fascinating facts type books (or websites) suitable for a knowledge hungry 5 year old?

In the last few days some of ds's questions have included "how do cats see in the dark?", "why don't people in Australia fall off?", "how do you make electricity?", "why don't we have volcanos in England?" and "how does a television work?". And of course my attempted explanations of these just trigger follow-up questions. Not being a scientist myself I suspect it's not going to be long before he's asking things I can't answer.

There is a website called askforkids.com or something very similar that I know DD uses at school to find out facts on different subjects.

(My DS often asks questions like that so maybe I should add that website to my favourites too).

There's a series of books called "I wonder why" that sound like they might be right. You used to be able to get bumper packs from the Book People really cheaply. They are still on Amazon, like this one .

I went into Waterstones before Christmas and found a Child's Science Encyclopedia. It looked really informative but I wanted a general Encyclopedia, I found one in Books etc, that is called the Oxford Children's First Encyclopedia. It has colourful illustrations and simply typed paragraphs that is easy for a child in KS1 to read. Its got everything, How the body works, Forces , Volcanos to name only a few.